PSN and Xbox Live Offline for Christmas

A group called Lizard Squad on Twitter took responsability for the outage.

Both the Xbox Live and PSN are unavailable, as the teams are working on fixing the unavailability.

The Xbox Live status page says that service is limited and that, "We’re aware that some of you are experiencing trouble signing in to Xbox Live, and we want you to know we’re working to address this as quickly as we possibly can. Thanks for your patience! We’ll update you on our progress in a half hour."

The PlayStation Network is also listed as "offline," and the PlayStation Network status page reads: "We are aware that some users are experiencing difficulty logging into the PSN. We will update this article with any changes that occur in regards to this issue. Thank you for your patience."

The group called Lizard Squad took the responsability for the attacks on Twitter. Inundating and overloading the networks with traffic, which means that this doesn't comprise the integrity of the networks or your personal information.